THE VIEW FROM ABOVE


said. “We still have some bone loss throughout a mission, but nothing comparted to what we saw in the early days,” she said.


Te effects of microgravity on the human body are a significant part of what astronauts are studying while on board the space station. “When we talk about how we’re going to get to Mars, folks really focus on [which] vehicle we’re going to be in, but the other questions that a lot of people are asking is, ‘How is this going to effect the human body?’ ” McClain said. “What’s our body going to be like when we get to Mars and we’re back in a gravity environment? What does that do to us long term?” Right now, it takes just under 24 hours to reach the ISS, and expeditions usually last about six months. In comparison, NASA projects that manned Mars missions will be about three years in duration—so learning how the human body reacts to microgravity and space flight is paramount for success.


In 2019, both Morgan and McClain were subjects for an ongo- ing vascular echo study that took place preflight, while in space and when they returned to Earth. Te study charted how the different pressures throughout the body affect the way blood moves and the way the arteries expand and contract with your


STORMY OUTLOOK


Tropical Cyclone Idai is pictured from the ISS in March 2019 as the orbital complex flew 261 miles above the southeast coast of Africa. Idai’s track took it over the Mozambique Channel and portions of the nations of Madagascar, Mozambique, Malawi and Zimbabwe, creating devastation and casualties in the south- east portion of the African continent.


FAR OUT PHOTO


McClain takes a break inside the ISS’s cupola while practicing Canadarm2 robotics maneuvers and Cygnus space- craft capture techniques in April 2019.


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Army AL&T Magazine Winter 2021


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